Switch-lock.



0. M. LOCKWOOD & A. A. STOUT.

SWITCH LOCK.

APPLIcATloN FILED JULY 29, 1912.

1,080,986. Patented Dee. 9, 1913.

@Lof/'Ewan COLUMBIA PLANOGHAPH Co.. WASHINGTON, D. c.

entran sra'rns rarnnfr cierren ORA lVI. LOCKWOOD AND ADISON' A. STOUT,OF ROCHESTER, NEW YORK.

swrron-Looir.l

Specification of Letters Patent.

Patented Dec. 9,1913.

Application filed July 29, 1912. Serial No. 712,158.

To all 'whom t may concern:

Be it known that we, ORA M. Lookwoon and ADIsoN A. SToU'r, citizens ofthe.. United States, residing at Rochester, in the county of Monroe andState of New York, have invented certain new and useful improvements inSwitch-Locks, of which the following is a specification, reference beinghad to the accompanying drawings.

This invention relates to new and useful improvements in key operatedlocking devices for switch boxes for spark coils such as are used uponautomobiles, launches and elsewhere in connection with internalcombustion engines and more particularly to the casing inclosing saidswitches, the object of the invention being to provide a casing wherebythe cover thereto may be readily removed and also to provide means forlocking the same in place.

Another object of the invention is to provide a locking device of theabove character which will possess advantages in points of efficiencyand durability, is inexpensive to manufacture and at the same time issimple in construction and operation.

With the above and other objects in view, the invention consists in thenovel features of construction and the combination and arrangement ofparts hereinafter more fully described, pointed out in the claims andshown in the accompanying drawings in which- Figure 1 is a frontelevation of our improved switcl Fig. 2 is a longitudinal sectionalview. Fig. 3 is a rear elevation, parts being broken away and insection, and Fig. 4E is a sectional view taken on the line ,L -4L ofFig. 2.

Referring more particularly to the drawings, 1 indicates the base memberwhich comprises a ring 2 having an inwardly eX- tending annular flange 2formed integral therewith and provided with a plurality of openingswhereby the same may be readily secured to the coil box or a dash of thevehicle by means of the screws 3. Formed integral with the flange 2 andarranged at diametrically opposite points are the oppositely disposedhooks 4 which are adapted to engage the inwardly extending lugs 5 formedupon the inner side of the flange 6 of the body 7 so as to securelyfasten the body 7 to the base member. The body 7 is held against rotarymovement upon the base when the hooks 4 are engaged with the lugs 5 bymeans of a set screw 8 carried by the flange G and adapted to engage therear of one of the hooks.

Arranged within the body 7 and secured thereto by means of the screws 9is an insulating disk 10 to which are secured the metallic contacts 11and 12, said contacts forming terminals for the lead wires 13 and 14which are connected to the magneto 15 and the batteries 16. Mountedwithin the body 7 is a lock 17, the barrel 18 of which eX- tends throughan opening 19 formed in the body 7. A. switch lever 20 is providedhaving a circular enlarged portion 21 formed integral therewith andmounted upon the barrel 18 of the lock and arranged between theinsulating disk 10 and the body 7. EX- tending outwardly from theenlarged portion 21 is an arm 22, the outer end of which is adapted toengage with the contacts 11 and 12 when it is desired to complet-e acircuit, the switch lever is normally arranged in a neutral position asillustrated in Fig. 3 of the drawing. A third contact 23 is arrangedwithin the body 7 at one side thereof and is connected by means of thelead wires 24 and 25 to the batteries 1G and the magneto 15.` The key(not shown) for operating the lock is adapted to fit into the key seat26 to be rotated so as to project the bolt 27 and engage the same withthe contact 23, which, when the arm 22 is engaged with either of thecontacts 11 and 12, will complete the circuit. Secured to the rear endof the locking bolt 27 is a rod 28, the outer end of which is adaptedtoproject through the openings 29 formed in the flange 6 of the body 7and one of the hook members 4, thus it will be seen that in this mannerthe body member 7 will, when the bolt 27 is in an unlocked position, besecurely fastened against rotation so as to prevent the removal of thesame. lt will be understood that the rod 28 locks the body member 7 tothe base when the locking bolt 27 is in its unlocked position, thereforeif the set screw S should be removed the body member will still belocked to the base so that the person holding the key to the lock wouldbe the only one who could obtain access to the interior of the body. lnconnecting either of the contacts 11 and 12 with the contact 23 tocomplete a circuit, the lever 20 is rotated until the arm 22 is engagedwith either of the contacts 11 and 12, the locking bolt 2 7 is thenprojected so as to engage with the contact 23 which will readily connecteither of the contacts 11 and l2 with the contact 23.

From the above description taken in connection with the accompanyingdrawings, it will be readily apparent that a through connection betweenthe contacts 11 and 12 and the magneto and batteries 15 and 16 cannot becompleted without the use of a key, to project the locking bolt 27 whichwill be in possession of the owner at all times and it will be seen thatthe switch cannot be operated by unauthorized persons.

While we have shown and described the preferred form of our invention itwill be obvious that various changes in the details of construction andin the proportions may be resorted to for successfully carrying ourinvention into practice without sacrificing any of the novel features ordeparting from the scope of the appended claims. i

What we claim is l. In a device of the character described, thecombination of a base comprising a ring, oppositely disposed hookmembers formed on the inner side of said ring, one of which is providedwith an opening, a body member rotatablyA mounted upon the base andprovided with an outwardly extending flange adapted to engage over saidring, said flange being provided with an opening, lugs carried by saidflange and adapted to be engaged by said hooks, means for holding saidhooks into engagement with the lugs, a lock arranged within the body, asliding bolt within the lock, a rod secured to one end of said bolt andadapted to be projected through the opening in the hook and the flangeof the body to prevent rotary movement of the body when the bolt is inits unlocked position.

2. In a device of the character described, the combination of a basecomprising a ring provided with an opening, a body member having anoutwardly extending flange adapted to engage over said ring, said flangebeing provided with an opening to register with the opening in the ring,a lock within the body, a sliding bolt within the lock, and a rodsecured to one end of the bolt and adapted to be projected through theopenings in the ring and the flange of the body to prevent rotarymovement of the body when the bolt is in its unlocked position.

3. In a device of the character described, the combination of a basecomprising a ring having an inwardly extending annular flange formedthereon, opposite hook members formed integral with the ring, a bodyrotatably mounted upon the base and provided with a flange extendingdownwardly over said base and having an opening formed therein, inwardlyextending lugs formed integral with the flange on the body and adaptedto be engaged by the hooks on the base, means for holding said hooksinto engagement with the lugs, a lock arranged within the body, asliding bolt within the lock and means secured to the bolt and adaptedto project through the openings in the body and the flange of the baseto prevent rotary movement of the body when the bolt is in its unlockedposition.

In testimony whereof we hereunto affix our signatures in the presence oftwo witnesses.

ORA M. LOCKVVOOD. ADISON A. STOUT.

Witnesses W. S. WLsoN,

H. BRADSTREET.

Copies of this patent may be obtained for ve cents each, by addressingthe Commissioner of Patents. Washington, D. C.

